Paddle wheel for boats and the like



PADDLE Fl LED JUNE 24 1 91 8 I 2 sHEETs-sHET l J. H. NYENHUIS. PADDLE WHEEL FOR BOATS AND THE LIKE. FILED JUNE 24.'1918. 2 SHETSSHEET 2 Jame, 1923., 1,442,729

Patented Gian. 16, 1923.

lil iil i lll hdZJZlil JOHN nanny nYEnnUrs, or onroaeo, iLLiNoIs.

PADIDLE YVHEELFOB BOAT$ AND THE LIKE.

Application filed June 24, 1918.

T 0 all whom it may coiwe'm Be it known that I, JOHN H. NYnNHUis, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Paddle Wheelsfor Boats and the like, of which the following is a specification. v

This invention relates to paddle wheels for boats and the like and has for its object broadly the provision of apaddle wheel of improved construction which will exert have been constructed and tested wherein pivoted blades are provided whichare either permanently arranged in vertical position or at a given angle to the vertical. In, order toobtain maximum efliciency I have discovered that the blades should enter the water edgewise and leave it in the same fashion; and that also when proJected edgewise the body of the blade should not interpose resistance to the water moving rearwardly relatively as the boat advances. In other words, the blades should enter the water edgewise and inclined along the resultant path determined by the linear movement of the bladeand the relative movement of the water and the-boat, and should leave the water in the same fashion. The blades on entering the water should each of thenienter the waterin slightly inclined position with respect to the vertical, while in the water should swing to vertical position and leave the water with similar and opposite inclination. A. paddle wheel so constructed not only does not interpose useless resistance to the propelling action but materially increases the speed of movement of the blades while in the water in that they pass from an angle in advance of the vertical. to an angle at its rear.

A further object of theinvention is the.

provisionof a propellerof the paddle wheel type, which cannot become entangled with Serial No. 241,494.

On the drawing, Figure ,1 is a transverse section through a paddle wheel embodying my present invention; and i i Fig. 2 is section taken the lines 2-2 of Fig. 1.

For the purpose of illustrating my present invention I have shown on the drawing diagrammatically a boat stern 11 re'arwardly from which extends a framework12 pro- VlClBClflVltll a rudder 13, the water line being indicated at let. In bearings 15 a power shaft 16 is suitably positioned and driven through sprocket 10 and carries sprocket wheels 17 at each side. Viewing Fig. 2 it will be noted that at each end of the shaft 16 is provided a short bearing shaft 18 from which arms 19 extend rearwardly and form bearings for a. fixed bearing shaft 21.

Upon each-shaft 21 and at its inner end is rotatably mounted a control member 22 upon thehub of which is provided a sprocket wheel 23 which is driven by a sprocket chain 2t from the sprocket wheel 17. The end of the bearing shaft 21 beyond the member 22 is inclined downwardly andrearwardly at 25 to form a bearing at 26 for one side wheel or disc 27 forming the body of the paddle wheel. The bearings 21 and 26 at each side are fixed bearings, that is to say substantially on they are fixed. against movement in the ordinary-operation of the paddle wheel and are onlymovab'le for purposes ofadjustment and to prevent damage to the parts as will he later more fully explained.

The two parts 2? constituting the body of the paddle wheel are each comprised of a central driving disc part 28, an outer peripheral or rim part 29 and connectingspokes 31. At intervals upon the rim 29 a plurality of bearings 32 are provided to pivotally receive the blades 38which extend between the two bodyinembers; Each blade at each side is provided with a supporting lever oral-111 3% extending beyond the blade to a pivot part whichpasses through the appropriate bearing 32 and therebeyond is extended in the form of an arm'36, the end of which at 37 is connected by a link 38 to a pivot lug; or short shaft 39 mounted in abearing 41 upon the rim periphery 42 of the adjacent controlling member 22, which member is like the member 27 except that its rim 42 is of less diameter. the central disc part 43 and the spokes 44; being like in substantially every respectthe disc part 28 and the spokes 31 of its companion member 27.

A number of lmks l5 having outwardly extending bearing studs l6 at each end con- Y nect' the two discs 28, and 43, one of the bearing studs having a rotatable bearing in each disc. There is thus independent drii 'ing connection between the body of the paddle wheel and the controlling members and between the blades of thepaddle wheel andgthe controlling member. 'The parts are preferably so constructed that the blades enter and leave the water as indicated in Fig. 1. That is to say, theyapproach the water edgewise and inclined upon a line substantially the resultant of the speed of the boat and the travel of the propeller blades, this arrangement being permitted accurately by the construction shown on the drawing and described.

It will be manifest from the foregoing that the blade moving at an angle in advance of the vertical to an angle behind it while inthe water has an accelerated movement and entering edge-wise into the water along the resultant line of movement of the two parts and leaving the water in like fashion does not tend to churn the water or interpose resistance against the driving forces.

At each side a bar 51 of any suitable eonstruction and having bearings at 52 upon" a bearing shaft 21 extends upwardly and the bars at the two sides are connected by a cross member 53. This construction 1s for the purpose of adjusting the angularity of the blades and the'bearing connections 52 are rigid with the shaft 21 so that if the frame consisting of the members 51 and 53 be swung rearwardly or forwardly the angularity of the portion 25 of the bearing shaft will be moved to alterthe angularity of the blades. Above the rear of the scow or boat is provided a framework 54 and this swung up, releasing the pull on the ropes thereby protecting it from damage, the wheel immediately returning to normal position after passing the obstruction.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described merely a preferred embodiment thereof.

I claim: v l

1. A paddle wheel for boats and the like, comprising a rotatingbody member, blades mounted thereon and continuously shifting in angularrelation with respect to the radius between the center of saidbody member and the point of connection of 'each particular blade to said body member and continuously shifting also with respect to the vertical, and means for maintaining said blades in downwardly inclined position throughout their path of movement.

A paddle wheel for boats and the like, comprising a rotating body member and blades mounted on the periphery thereof, said blades being inclined always toward the a water and, except when on vertical center,

at an angle with respect to the radius of being the body member fromthe points of attachments of said blade and also with'respect to the vertical. 7 V V 3. A paddle wheel for boats and the like, comprising in combination a rotating body member, blades pivot-ally mounted about its periphery, the .angularity of such blades shifting while in the water, and means for maintaining said blades in downwardly inclined position throughout their path of movement. r 7

4. A paddle wheel for boats or the like, comprising in combination a rotating body member, blades pivotally mounted upon its periphery, an eccentrically mounted control member, and independent driving'conn'ec- 'tions between said body member and the control member and between the control member and said blades, said'latter connections serving also to scour said blades to said body member.

5. A paddle wheel for boats and the like, comprising in combination a rotating wheel at each side, a blade wheel eccentrically mounted, with respect to said rotating wheels, levers offset with respect to the plane of and pivoted at their centers with said blade wheel, blades lying along the arms of said levers, the other arms of said levers being pivoted to said rotating wheels.

G. Apaddle wheel for boats and the; like,

comprising in combination a rotating wheel at each side, a body wheel eccentrically mounted with respect to said rotating wheels, levers pivoted in said body wheel, links-connecting said levers with said rotating wheels, and blades carried by said levers and located at a side of the pivotal-axis thereof.

7 A paddle wheel for boats and the like,

comprising incombination a rotating wheel at each side, a body wheel eccentrically mounted. with respect to said rotating wheels, levers pivoted in saidbody wheel,

links connecting said levers with said rotating Wheels, blades carried by said levers and located at a side of the pivotal axis thereof and lying substantially in the plane of connected levers.

8. A paddle Wheel for boats or the like, comprising a body member, blades on said body member, a control member eccentrically mounted with respect to said body member and having connection With said blades and support "for said body member yieldable in an upward direction only.

JOHN HENRY NYENHUIS. 

